The Urban Dictionary T-Shirt

To be used to tell someone off when someone tells the dirtiest joke you can possibly imagine.

Wanda: Why are little girls better than little boys? You can flip her over and then they look just the same.
Boss: That's the dirtiest joke I've ever heard. You have completely wrecked my plans to ask you out on a romantic candle-lit dinner, nail you, and finger guns to our fellow employees. You're dead to me. And you're fired.